SEOUL ELECTRONICS & TELECOM Co., Ltd. engages in the manufacture and sale of power supply equipment and device parts. It operates through the electrical components and payment terminals businesses. The electrical components business offers power and switching transformers and switching mode power supply. The payment terminals business provides point-of-sale, wired, and wireless payment terminals. The company was founded on June 17, 1983 and is headquartered in Incheon, South Korea.